| 预抛—分级回收工艺预选秘鲁某金铜铁多金属矿深部矿石 |
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| 引用本文： | 谭欣,刘书杰,肖巧斌.预抛—分级回收工艺预选秘鲁某金铜铁多金属矿深部矿石[J].矿产保护与利用,2020,40(6):102-108. |
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| 作者姓名： | 谭欣 刘书杰 肖巧斌 |
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| 作者单位： | 1.矿冶科技集团有限公司, 北京 100160 |
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| 摘 要： | 采用浅部矿的预选工艺对秘鲁某金铜铁多金属矿含Cu 0.127%、Au 0.08 g/t、S 2.08%、Fe 40.56%的深部矿石进行了选矿预选富集试验研究，为该矿石的合理预选工艺提供参考。结果表明，浅部矿的预抛—分级预选工艺（原矿-25 mm干抛—干抛精矿高压辊磨细碎—高压辊磨细碎产品湿抛—预抛尾矿分级回收）对深部矿石具有较好的适应性和预选富集效果，最终获得铜品位0.13%、铁品位48.76%、铜回收率87.49%、铁回收率97.93%的总预选精矿，总预选抛尾率为18.84%。项目成果为该矿石的合理预选工艺选择提供了参考，并为提高选厂后续磨浮作业的矿石入选品位，降低入磨矿量和磨选成本，综合回收矿石中铁铜等伴生有价金属创造了良好的前提条件。
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| 关 键 词： | 金铜铁多金属矿 高压辊磨 干抛 湿抛 预选富集 |
| 收稿时间： | 2020-10-08 |
Pre-concentration Process of Pre-throw—Classification Recovery of Pre-thrown Tailings on Deep Ore in a Au-Cu-Fe Polymetallic Deposit in Peru |
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| Affiliation: | 1.BGRIMM Technology Group, Beijing 100160, China2.State Key Laboratory of Mineral Processing Science and Technology, Beijing 102628, China |
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| Abstract: | To provide the reference for reasonable pre-concentration process for the deep ore of Au-Cu-Fe polymetallic deposit in Peru with 0.127% Cu, 0.08 g/t Au, 2.08% S and 40.56% Fe, the mineral processing pre-concentration test on the ore was studied, with a process of pre-throw—classification recovery for the shallow ore. It shows that the pre-concentration process of pre-throw—classification recovery for the shallow ore composing of dry throwing of raw ore -25 mm—fine grinding of rough concentrate by high pressure roller grinding—wet throwing of the fine grinding product by high pressure roller grinding—classification recovery of copper and iron from pre-thrown tailings has a good adaptability and pre-concentration effect for the deep ore, the concentrate with Cu grade 0.13%, Fe grade 48.76%, Cu recovery rate of 87.49% and Fe recovery rate of 97.93% can be obtained, and the tailings discarding yield can reach 18.84%. The research results provide the reference for the selection of the reasonable pre-concentration process for the ore, and have created a good prerequisite for improving the grade of beneficiation in the follow-up grinding and flotation operation, reducing the grinding amount of ore and the cost of mineral processing and comprehensively recovering the associated valuable metals such as iron and copper in the ore. |
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